# SDR CALA2025111011071

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2025
- Submitted: November 10, 2025
- Operation: Air carrier
- Aircraft: [N33209](https://openairdocs.org/aircraft/N33209), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30581
- Aircraft time: 76,364 hours, 28,565 cycles
- System (JASC): [5314 · Fuselage Main, Keel](https://openairdocs.org/jasc/5314)
- Part: Web
- Condition: Corroded
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025111011071

## Discrepancy

KEEL BEAM TRUSS WEB WAS FOUND WITH SPOTS OF CORROSION AFTER CLEANING AT APPROX BS 548, 551, 555,557.5, AND 560.6.   REPAIRED KEEL BEAM TRUSS WEB PER SRM 53-40-12-2R-1.

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